Rose plant Jacmey

ABSTRACT

A rose variety of the hybrid tea class is provided having a very high cut flower production, long and exceptionally straight stems, deep yellow buds contrasted with semi-glossy dark green leaves, downward hooking reddish colored thorns, five or seven leaflet leaves, and resistance to infection by powdery mildew.

SUMMARY OF THE INVENTION

The present invention relates to a new and distinct variety of roseplant of the hybrid tea class, which was originated by me by crossingthe variety Golden Emblem, U.S. Plant Pat. No. 5,121, with an unnamedseedling.

The primary objective of this breeding was to produce a new rose varietyof the hybrid tea class suitable for geeenhouse production. Thisobjective was substantially achieved, along with other desirableimprovements, as evidenced by the following unique combination ofcharacteristics which are outstanding in the new variety and whichdistinguish it from its parents as well as from all other varieties ofwhich I am aware. For example, this new rose variety has:

1. Very high production of cut flowers;

2. Long, very straight stems;

3. Dark green, semi-glossy leaves;

4. Deep golden yellow buds;

5. Resistance to powdery mildew;

6. Reddish thorns that hook downward;

7. Five or seven leaflet leaves.

Asexual reproduction of this new variety by budding, as performed atWasco, Calif., shows that the foregoing characteristics and distinctionscome true to form and are established and transmitted through succeedingpropagation.

DESCRIPTION OF THE DRAWING

The accompanying illustration shows typical specimens of the vegetativegrowth and flowers of this new variety in different stages ofdevelopment, depicted in color as nearly true as it is resonablypossible to make the same in a color illustration of this character.

DETAILED DESCRIPTION OF THE INVENTION

The following is a detailed description of my new rose cultivar, whichas been denominated "Jacmey". Color terminology is in accordance withThe Royal Horticultural Society Colour Chart except where an ordinarydictionary significance for the color is apparent.

Observations of the buds and flowers were made from specimens grown in agreenhouse at Irvine, Calif. in the Winter and Spring.

Flower

The blooming habit is continuous. The bud size is one and one-halfinches when the petals start to unfurl. The bud form is long, pointedovoid. The bud color when sepals first divide is near Yellow 12A; whenhalf brown, the upper side of petals is near Yellow 12B and the lowerside of petals is near Yellow 12B. The sepals have a color near Green138B. The surface texture is covered in very fine hairs. There are threeappendaged sepals lightly appendaged, and two unappendaged sepals withhairy edge. The receptacle color is near Green 141B with a funnel shape,medium size and smooth surface. The peduncle is medium to short length,and has a smooth surface. Peduncle color is medium green and thependuncle is stiff and erect.

Bloom

Bloom size is large, with an average open size of four and one-halfinches, borne singly. The stems are strong and long. The form when firstopen is high center. The petals then all curl in quill fashion. Undernormal conditions there are thirty-five to forty petals. The upper sideof petals is Yellow 12A to 12B, as is the reverse side of the petals.The base of petals has a small, intensely yellow half-moon at the pointof attachment to the peduncle with the major color being near Yellow13A. There are no variegations. The general tonality at the end of thefirst day shows no change in color. At the end of the third day, thereremains no discoloration.

The fragrance is slight to moderate. The petal texture is thick, of adeltoid shape, and the tips are slightly recurved and moderatelyquilled.

The arrangement is imbricated with few petaloids in the center. Theblooms drop off cleanly, and last on the plant for a very long periodand as a cut flower for a very long time.

Reproductive Parts

The anthers are medium and many, of yellow color, arranged regularlyaround the styles and are mixed with a few petaloids. The filaments areyellow, the pollen is gold yellow, the styles are reddish, and thestigmas are greenish white.

Plant

A very vigorous, upright growth of bush form.

Foliage

Medium size, normal in quantity. The new foliage has a reddish cast thatrapidly turns green. Normal mid-stem leaves have five or seven leaflets.

The leaflets are of an oval pointed shape, are smooth, and have aserrated edge. The serration is single and small in size. Petiole rachisis reddish when young, then green, and petiole underside is smooth.Stipules are medium and serrated. The foliage is resistant to mildewunder normal growing conditions at Irvine, Calif.

Wood

New wood is reddish, with a smooth bark. Old wood is green with a smoothbark.

Prickles

There are an ordinary number of prickles on main canes from the base andon laterals from the main canes. The form is medium and hooked downward.Color when young is red.

Small Prickles

There are no small prickles on the main stalks or on the laterals.

Additional Distinguishing Traits

This novel rose plant produces exceptionally upright straight floweringstems in large numbers.

Parentage

The seed parent was Golden Emblem, U.S. Plant Pat. No. 5,121. The pollenparent was an unnamed seedling.

Classification

Botanical is rosa hybrid. Commercial is hybrid tea.

I claim:
 1. A new and distinct variety of rose plant and parts thereofof the hybrid tea class substantially as herein shown and described,characterized particularly as to novelty by a very high cut flowerproduction, long and exceptionally straight stems, deep yellow budscontrasted with semi-glossy dark green leaves, downward hooking reddishcolored thorns, five or seven leaflet leaves, and resistance toinfection by powdery mildew.